Hydraulic jacking system



192 Jan 4 7 H. G. ElsLER `FWDRAULIC JACKING SYSTEM I5 Sheets-Sheet 1 Filed 001'.. l0, 1925.

Jan. 4 s

1,613,268 H. G. EISLER HYDRAULIC JACKING SYSTEM 3 Sheets-Sheet 2 Filed 001'.. 10 1925 J/ezzzy gusau y 1,613 26s Jan. 4 1921. H. G. EISLER HYDRAULIC JACKING SYSTEM.

Filed Oct. l0 1925 3 Sheets-Sheet 5 Wr-TE? Patented Jen.' 4, 1927,

`- HENRY Gus'rav nIsLEaoF WILMETTE, ILLINOIS.

'HYDRAULIC `JACKING SYSTEM.

Application med october 1o, i925. serial No. 61,821.

This invention relates to hydraulic jacking, pumping and oiling systems in general and more particularly to such systems as are adapted to be used on automobiles. y

It is vaccordingly an object o f this invention to provide an efficient hydraulicI jacking, pumping,andoi1ing system which may be economically manufactured and conveniently operated.

i Other and further important objects of this invention will be apparent from the disclosures in the specification and accompanying drawings.

Thel invention (in a preferred form) is illustrated' in the' accompanying drawings and hereinafter more fully described.

On the drawings:

Figure 1 is a side elevational vview of an automobiley having a system embodying this invention installed thereon.

F'gure 2 is a plan view with parts removed showing diagrammatically the connections to thevarious parts'of the system.

Figure 3 is an enlarged fragmentary, dia- `grammatical, sketch showing the manner in which the various parts lare connected together in the system.

Figure 4 is an enlarged fragmentary slde elevational view with parts removed of the pump, reservoir, release valve, distributing valve, and connections thereto.

Figure 5 isa side elevational View of Figure 4.

Figure 6 is an enlarged fragmentary vertical-transverse section with' parts omitted taken at the line VI-VI of Figure 4 and showing the release valve.

Figure 7 1s an enlargediragmentary vertical longitudinal section with partsfomitted VIH-VIII of Figure 4 and showing and parts in elevation taken at the line VlI-VII of Figure 5 and also showingnthe release valve. i

Figure 8 is an enlarged' fragmentary vertical transverse section with parts omitted and parts in elevation, taken at' the '.liile t e distributing valve.

I Figure 9-is an enlarged fragmentary detail View with parts omitted showing the distributing valve as viewed in Figure 4.

tal view partly in section of a portion of the i device shown in Figure 10.

.Figure 12 is a view similar to that'of Figure 11 and showing the same mechanism therein except that the jack and swing valve arev shown in downward or operative position.

Figure 13 is a. fragmentary horizontal section withparts omitted'taken at the line XIII- XIII of Figure 12.

A .shown on the drawings: y

The system of this invention comprises essentially a reservoir 1 containing a suitable fluid such as grease, oil or the like; a pump 2, a release valve 3, a distributing valve 4, and the various devices desired to be operated hydraulically including the jacks 5 and swing valves 6 associated therewith. The release valve 3 is connected in the system with the distributing valve 4 and the reservoir 1 and pump 2 so as to permit the latter at vone position of said release valve to put a suction on the distributing valve and discharge' vpressure on the reservoir and at another position of said release valve to put .a suction on the reservoir and a discharge pressure on the distributing valve. v The distributing valve is connectedvbetween the release valve and the various devices desired to be operated hydraulically for `selectively connecting the release valve to said variousk devices.v For the sake of economy of space and construction, as well as for the sake of ruggedness, the reservoir 1 and the pump 2 are contained in a single casing 7. The pump 2comprises a cylinder open at the rear end and which extends longitudinally along the lower right-hand edgeof said casing. A piston 8 of the pump 2 is provided with a central rearwardly extending rod 9 which is pivotally connected at the rear end thereof toa transverse lever 10, said rod being connected to said lever intermediate the ends of the latter. is pivoted'at its inner end to a bracket 12 secured on the rear side of the casing 7 and is provided with a handle 1.1 at its outer end through which the pump 2 may be oper- Figure 10 is an enlarged detail section' with parts omitted taken at the line X--X of Figure 2 and showing the swlng valve and jack.

Figure 11 is an enlarged fragmentary deated.' The forward end of thev pump 2 is connected through a pipe 13 tothe upper portion of the housing of the release valve 3. A second pipe 14 is suitably connected at one end thereof to the pipe 13. The other end of the pipe 14 communicates with 4the lower portion of the housing of the release valve 3 through a -pair of parallel connec.4

The lever 10 lll() los I on by the pump 2. The valve 18 will only v of the latter two connections.

permit fluid to How therethrough -in the upward direction; that is, it will be closed when suctionis placed thereon by the pump 2 and will be opened when a discharge is placed thereon by the pump 2. The reservoir 1l is connected to a pipe 19 which through a pair of parallel pipes 20 and 21 communicates with the housing of the relea'fe valve 3. Pipes 20 and 21 have mount-I ed therein one-way valves 22 and 23 respec-' t-ively. The connections for the pipes 20 and 21 with the housing of the release valve 3 are in thesame circumferential plane as the connection for the pipe 13 and are equally spaced on either side of the latter. The valve 22 will only permit fluid to flow therethrough downwardly and the valve 23 will only permit fluid to flow therethrough upwardly. A pipe 24 is connected to the housing of the valve 3 in substantially the same circumferential plane with the connections for the pipes 15 and 16 and the connection therefor is centrally positioned intermediate The other end of the pipe 24 is connected to and communicates with the interior of the housing of the distributing valve 4. The release valve 3 is provided with a rotatable barrel 2 5. snugly fitting the interior of the valve housingr and having a pair of diametrically opposed -receses 26 and 27. At one angular position of the bari'el 25, that is the on position, the recess 26 will connect the ends of' pipes 13 and 2O together inside the valve housing and the recess 27 will connect the ends of the pipes 16 and 24 together inside of said housing. At a second angular position of the barrel 25, that is the of position, the recess 26 will connect the ends of the pipes 13 and 21 togetherinside the valve housing and recess 27 willv connect the ends A of the pipe 24 and 16 together inside of said housing. The barrel 25 is provided with a central outwardly extending integral shaft 28 upon which may be secured a knob or lever 28a for rotating said barrel to on or off position. The housing of the distributing valve 4 is cylindrical in shape and has connected thereto and communicating with the interior thereof a plurality of pipes 29, 30, 31, 32, 33 and 34. The connections for the pipes 29, 30, 31, 32, 33 and 34 are substantially in the same circumferential planeV on the housing of the valve 4. A rotatable barrel 35 is provided in the valve 4, fits snugly in the houing thereof,and ispro- `periphery of said barrel.

vided with a central. chamber 36 and a radial passage 37 extending from said recess to the The aperture 37 is in substantially the same circumferential plane 'as the connections from the pipes 29, 30, 31, 32, 33 and 34 so that the barrel 35 may be selectively rotated to connect the chamber 36 with any of said pipes. The pipe 24 communicates with the chamber -36 in the housing of the valve 4 through a centrally apertured plate 38 secured on the inner face of said housing. A parallel plate 39 secured on the outer face of .the housing of the valve 4 is apertured to receive therethrough a central outwardly extending shaft 40 integral with'the barrel 35 and adapted to have secured thereon an operating knob or level' 40 (Figure 2). The other end of cach of the pipes 29, 30, 31 and 32 is connected to a swing valve 6, one mounted vnear each end of each axle of an automobile or other vehicle. Referring to` Figures 1 and 10 there is sho-wn rigidly clamped to an axle 43 a rearwardly and upwardly extending arm 41. Each arm 41 has` an integral clainp 42 at the forward end thereof which is adapted to fit the side of an axle 43 and ii flangezl at the upper and lower edges for connection to a flanged memi'ber 44 fitting the other side of said axle and bolted to said first clamp member. A swing valve 6 previously mentioned vis provided at the rear end of each arm 41 and consists essentially of a hollow cylindrical housing 45 open at either end and transversely journalled on said rear end, The rear end of each arm 41 is recessed .to provide a transverse core 46 which extends from near one side of said arin pai't way to the other side thereof. The recess about the coie 46 is Aenlarged to .forni an annular shoulder 47 concentric with the core 46 and to rotatably receive the housing 45, one side of which bears on iiaid shoulder. A plate 48 which is recessed at its outer edges to provide a second annular shoulder 49 concentric with the core 46 and upon which the other sideI of the housing 45 bears, 'is rigidly secured to said core. The plate 48 effectually closes the outer side of the recess surrounding the core 46. A pair of angularly spaced upper and lower plates 50 and 51 respectively extend radially from lthe core 46 to form 4with each other, the periphery of said core and the 1inner' periphery of -the housing 45, anzouter arcuate v recess 52. kThe plat-es 50 and 51s.effectuallyq close the upper and lower ends of the recess 52. A radial lug 53 is provided ,integral with the housing 45 and extendi from the inner periphery thereof across the recess 52 reaching to the periphery of the core 46. A hydraulic jack cylinder 54 is provided on the outer periphery of the housing 45 and integral therewith` the axis of said cylinder extending in a plane parallel to the planes of rotation of said housing. A jack plunger 55 is contained in the cylinder 54 such that whenl ment of the housing 45 as shown in Figure 11 and the plate 51 is positioned to limit the clockwise movement of said housing as chown in Figure 12. The end of each of the pipes 29. 30, 31, 32 and 33 opposite to the distributing valvel 4-is connected to the side of the corresponding arm 41 adjacent the inner end of the core 46 and communicates through a passage 56 to the upper endl of the recess 52. One end o`f a flexible pipe 57 is also connected to said arm 4l' adjacent the foregoing connect-lon thereto from one of the-pipes 29, 30, 31, 32 or 33 and communicates through a passage 58 with the recess 52 adj acentthe lower end thereof. rlhe other end of the pipe 57 is connected to the top of -the cylinder 54. There are thus provided four jacks one near each end of the front and rear axles `of the vehicle. The jacks are normallyy carried in a horizontal position as shown in Figures 1, 2 and 10. The end of the pipe 33 opposite to the distributing valve 4 may be connected to a suitable air pump and the similar end of the pipe 34, in case a lubricant i.; used for a fluid 1n the system,`mayv be connected to the various bearings desired to be lubri 'ated In the operation when it is desired to op? crate any of the jacks 5 for raising the part ot' the car served thereby it is only necessary to manipulate the lever a (Figure 2) of the distributingl valve so as to rotate the barrel 35 until the proper jack is in coinuulnication with said valve. A suitable dial or indicator (not shown) is provided for indic-ating what positions of theV lever 4()a will selectively connect the valve 4 to each of the pipes 29, 30, 31, 32, 33 and 34v respectively. The release valvel 3 is then turned to on position so that when the handlell is operated to actuate the piston 8 to the left (Figure 3) the .fluid from the reservoir may be drawn into the pump through pipes 19 and 20, valve 22 therein, recess 26 and pipe 13. llVhen the piston 8 moves to lthe Aright the fluid will be discharged under pressure through pipes 13, 14 and 16, valve 18 in the latter, recess 27 and pipe 24 to the distributing valve chamber 36 vwhence Vit. passes through the passage 37 to one of Ithe pipes -29. 30, 31 or 32 to the proper jack. Before entering the jack 5 however the fluid firstenters the passage 56 of the swing valve 6 associated with the jackand enters the re-l cess 52 causing the lug 53 to vmove away from the plate' 50. When the lug 53 has moved far enough to abut the plate 51` the jack 5 will have reached-*a vertical position.

When the swing valve (i has moved the jack 5 to vertical position and the lug 53 has passed the opening of the passage-.58 the fluid will enter said passage. and the flexible pipe 57 to reach the top of jack cylinder 54 and force the jack plunger downwardly.

When the release valve 3 is turned to off position a suction may lbe placed on the distributing valve for communication to any4 .of the devices which have been operated hydraulically and the lluid drawn therefrom may be discharged to the reservoir 1. The suction communicated to the recess 52 will act to returnthe jack 5`to horizontal position but this action may be supplemented by a4 spring (not shown) connected for normally holding the jack in said position.

It will be obvious that the foregoing system provides a means for jacking the car in a simple and convenient manner.

By -providing four jacks the entire car may be raised at once, a convenience for storage,repairs, etc.

The rigidity with which the jacks are held in operative position will prevent the car from tipping the jack over when moved Slightly for any reason.

I am aware' that many changes may be made and numerous detailsof construction may be varied through al wide range without departing-from the principles of this trolling means including a release valve and a distributing valve.

2. A vehicle hydraulic system having connected therein a pu1np,`a reservoir, hydraulic lifting means, and controlling means for permitting said pump to place a suction on either the lifting means or the regervoir, said controlling means including a distributing valve and a swing valve, 'individual to each of said lifting means. i

3. A vehicle hydraulic system having connected therein a pump, a reservoir, hydraulic sov lifting means, and controlling means for permitting said pump to place a' suction onthe reservoir land discharge to the liftingmeans or to place a suction on the lifting means and discharge to the reservoir.

4. A vehicle hydraulic system having con nected therein a pump, a reservoir, a plurality of hydraulic devices, and means for selectively connecting said pump to said devices, said means including releasing means ,and distributing meansindependent of said releasing means.

5. A velncle hydraulicsystem havlng connected therein a pump, a reservoir, a plu-l rality of hydraulic devices, distributing means selectively connected to said devices, and 'controlling means connected with said first means, said reservoir and pump for permitting said pumpv to discharge to either the first means or the reservoir.

6. A vehicle hydraulic system having connected therein a pump, a reservoir, a pluralityiof limiting devices operatively disposed on the vehiclel for lifting the same, and means vfor selectively connectin said pump to said devices', said means inc uding releasing means and distributing means controlled by said releasing means.

7 A vehicle hydraulicsystem having connected therein a pump, a reservoir, a plurality of lifting devices operatively disposedon the vehicle for lifting the same, distributing means selectively connected to said devices, and controlling means connected with said 4first means, pump, and

reservoir for permittingsaid pump to discharge to either the first means or the reservoir.- 1

8. A vehicle hydraulic system having connected therein a pump, a reservoir, a plurality of lifting devices operatively disposed on said vehicle for lifting the same, distributin means connected to said devices, and contro ling means connected with said first means, pump, and reservoir for permitting lsaid pump to place a suction on either the first means or the reservoir.

9. A vehicle hydraulic system having connected therein a pump, areservoir, a plurality of lifting devices operatively disposed on said vehicle for lifting the. same, distributing means connected to said devices, and controlling means connected with saidfirst lneans, pump, and reservoir, for permittingA said pump to place a suction on the reservoir and discharge to the first means, or place a suction on the first means and discharge to the reservoir.

l0.` A vehicle hydraulic system having connected therein a pump, a reservoir, hydraulic lifting means, controlling means for permitting said pump to discharge to either the lifting means or the reservoir, and means disposed between said lifting means and controlling means and operatively connected to the former means for normallyiholding the same in an inoperative, out-of-theway position and for shifting the same to an operative position on the discharge of the. pump thereto.

11. A vehicle hydraulic system having 'connected therein a pump, a reservoir, hy-

d'raulic lifting means, controlling means -for permitting said pump to discharge to either the lifting means or thereservoir, and means disposed betweentsaid lifting means and .con-

trolling means and operatively connected to the former means for normally holding the mined same in an inoperative, out-,of-the-way position and for shifting the same to an operative position on the discharge of the pump thereto, said third means including al rotatable member rigidly secured to saidl lifting means and operable therewith, said rotatable member having a rigid support connected to the vehicle. l

12. A vehicle hydraulic system having connected therein a pump, a. reservoir, hy.- draulic lifting means, controlling means for permitting said pump to discharge to either the lifting means or the reservoir, and swinging means disposed between said lifting ,means and controlling means and' operatively connected 'to' the former means for normally holding the same in an inoperative, Y

out-of-the-way position and for swinging .the same to an operative position upon the discharge of the pump thereto, said lifting means being responsive to a predetermined movement of said swinging means.

13.l A.' vehicle. hydraulic system having connected therein a pump, a reservoir, a plurality of lifting devices operatively disposed on the vehicle for lifting the same, means for -selectively connecting said pump to said devices, and means disposed between each of 'said devices and said first means and operatively connected to said devices for normally holding the same in an inoperative,`

out-of-the-way position and-for shifting the same to an operative position upon the discharge of the pump thereto, said shift-ing s/beng operable to render said lifting means active. v

14. A vehicle hydraulic system having connected therein a pump, a reservoir, a pluupon the discharge of the pump thereto, said shifting means being operable in a predeterposition to render saidlifting means active.

15. A vehicle hydraulic system having connected therein a pump, a reservoir, a plurality of liftingfdevices operatively disposed on the vehicle for lifting the same, means for selectively connecting said pump to said devices, and means disposed between each of said devices and said first means and operatively connected to said devices for normally holding the same in an inoperative, out-ofthe-way position and for shifting the same to an operative position upon the discharge release of the pump thereto, said third means' including a rotatable member rigidly secured to each of said devices and operable therewith, said rotatable member having a rigid support connected to the vehicle. l

16. A vehicle. hydraulic system having connected therein a pump, a reservoir, a plu rality of lifting devices operatively disposed on the vehicle for lifting the same, distributing means selectively connected to said device, controlling means connected With said first means, pump and reservoir forA permitting said pump to discharge to either said first means or the reservoir, and means disposed between each of said devices and said first means and operatively connect/ed to said devices for normally holding the same in an ino erative, out-of-the-Way position and for shi ting the same to an operative position upon'the discharge of the pump thereto, said last mentioned means including a rotatable' member rigidly secured to each of said devices and operable therewith, said rotatable member' having a rigid support connected to the vehicle.

.ln testimony whereof lt have hereunto subscribed my name.

HENRY GUSTAV EISLER. 

